diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index 1f5b8a06a7..7bd4e0c522 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -59,11 +59,11 @@ SET enable_indexscan = OFF;
 SET enable_bitmapscan = OFF;
 SELECT * FROM fast_emp4000
     WHERE home_base @ '(200,200),(2000,1000)'::box
-    ORDER BY home_base USING <<;
+    ORDER BY home_base USING <;
        home_base       
 -----------------------
- (337,455),(240,359)
  (1444,403),(1346,344)
+ (337,455),(240,359)
 (2 rows)
 
 SELECT count(*) FROM fast_emp4000 WHERE home_base && '(1000,1000,0,0)'::box;
@@ -80,11 +80,11 @@ SET enable_bitmapscan = ON;
 -- changes too often for me to want to put an EXPLAIN in the test...)
 SELECT * FROM fast_emp4000
     WHERE home_base @ '(200,200),(2000,1000)'::box
-    ORDER BY home_base USING <<;
+    ORDER BY home_base USING <;
        home_base       
 -----------------------
- (337,455),(240,359)
  (1444,403),(1346,344)
+ (337,455),(240,359)
 (2 rows)
 
 SELECT count(*) FROM fast_emp4000 WHERE home_base && '(1000,1000,0,0)'::box;
@@ -111,11 +111,11 @@ SET enable_indexscan = OFF;
 SET enable_bitmapscan = OFF;
 SELECT * FROM fast_emp4000
     WHERE home_base @ '(200,200),(2000,1000)'::box
-    ORDER BY home_base USING <<;
+    ORDER BY home_base USING <;
        home_base       
 -----------------------
- (337,455),(240,359)
  (1444,403),(1346,344)
+ (337,455),(240,359)
 (2 rows)
 
 SELECT count(*) FROM fast_emp4000 WHERE home_base && '(1000,1000,0,0)'::box;
@@ -132,12 +132,12 @@ SELECT * FROM polygon_tbl WHERE f1 ~ '((1,1),(2,2),(2,1))'::polygon
 (1 row)
 
 SELECT * FROM circle_tbl WHERE f1 && circle(point(1,-2), 1)
-    ORDER BY f1 USING <<;
+    ORDER BY f1 USING <;
       f1       
 ---------------
+ <(1,2),3>
  <(1,3),5>
  <(1,2),100>
- <(1,2),3>
  <(100,1),115>
 (4 rows)
 
@@ -161,11 +161,11 @@ SET enable_bitmapscan = ON;
 -- changes too often for me to want to put an EXPLAIN in the test...)
 SELECT * FROM fast_emp4000
     WHERE home_base @ '(200,200),(2000,1000)'::box
-    ORDER BY home_base USING <<;
+    ORDER BY home_base USING <;
        home_base       
 -----------------------
- (337,455),(240,359)
  (1444,403),(1346,344)
+ (337,455),(240,359)
 (2 rows)
 
 SELECT count(*) FROM fast_emp4000 WHERE home_base && '(1000,1000,0,0)'::box;
@@ -182,12 +182,12 @@ SELECT * FROM polygon_tbl WHERE f1 ~ '((1,1),(2,2),(2,1))'::polygon
 (1 row)
 
 SELECT * FROM circle_tbl WHERE f1 && circle(point(1,-2), 1)
-    ORDER BY f1 USING <<;
+    ORDER BY f1 USING <;
       f1       
 ---------------
+ <(1,2),3>
  <(1,3),5>
  <(1,2),100>
- <(1,2),3>
  <(100,1),115>
 (4 rows)
 
diff --git a/src/test/regress/sql/create_index.sql b/src/test/regress/sql/create_index.sql
index 0e28ac0e14..07f40f5c77 100644
--- a/src/test/regress/sql/create_index.sql
+++ b/src/test/regress/sql/create_index.sql
@@ -83,7 +83,7 @@ SET enable_bitmapscan = OFF;
 
 SELECT * FROM fast_emp4000
     WHERE home_base @ '(200,200),(2000,1000)'::box
-    ORDER BY home_base USING <<;
+    ORDER BY home_base USING <;
 
 SELECT count(*) FROM fast_emp4000 WHERE home_base && '(1000,1000,0,0)'::box;
 
@@ -96,7 +96,7 @@ SET enable_bitmapscan = ON;
 -- changes too often for me to want to put an EXPLAIN in the test...)
 SELECT * FROM fast_emp4000
     WHERE home_base @ '(200,200),(2000,1000)'::box
-    ORDER BY home_base USING <<;
+    ORDER BY home_base USING <;
 
 SELECT count(*) FROM fast_emp4000 WHERE home_base && '(1000,1000,0,0)'::box;
 
@@ -128,7 +128,7 @@ SET enable_bitmapscan = OFF;
 
 SELECT * FROM fast_emp4000
     WHERE home_base @ '(200,200),(2000,1000)'::box
-    ORDER BY home_base USING <<;
+    ORDER BY home_base USING <;
 
 SELECT count(*) FROM fast_emp4000 WHERE home_base && '(1000,1000,0,0)'::box;
 
@@ -136,7 +136,7 @@ SELECT * FROM polygon_tbl WHERE f1 ~ '((1,1),(2,2),(2,1))'::polygon
     ORDER BY f1 USING <<;
 
 SELECT * FROM circle_tbl WHERE f1 && circle(point(1,-2), 1)
-    ORDER BY f1 USING <<;
+    ORDER BY f1 USING <;
 
 SELECT count(*) FROM gpolygon_tbl WHERE f1 && '(1000,1000,0,0)'::polygon;
 
@@ -151,7 +151,7 @@ SET enable_bitmapscan = ON;
 -- changes too often for me to want to put an EXPLAIN in the test...)
 SELECT * FROM fast_emp4000
     WHERE home_base @ '(200,200),(2000,1000)'::box
-    ORDER BY home_base USING <<;
+    ORDER BY home_base USING <;
 
 SELECT count(*) FROM fast_emp4000 WHERE home_base && '(1000,1000,0,0)'::box;
 
@@ -159,7 +159,7 @@ SELECT * FROM polygon_tbl WHERE f1 ~ '((1,1),(2,2),(2,1))'::polygon
     ORDER BY f1 USING <<;
 
 SELECT * FROM circle_tbl WHERE f1 && circle(point(1,-2), 1)
-    ORDER BY f1 USING <<;
+    ORDER BY f1 USING <;
 
 SELECT count(*) FROM gpolygon_tbl WHERE f1 && '(1000,1000,0,0)'::polygon;